141-143 Lexington St, San Francisco, CA 94110

The 4-unit, 2-story multi-family residential building at 141-143 Lexington Street in the Inner Mission, constructed in 1910 and owned by 141 Lexington LLC, has undergone significant improvements and safety upgrades in recent years. Most notably, between 2022 and 2023, the property received comprehensive fire safety upgrades including the installation of a new automatic fire alarm system ($27,655), a ground floor ADU fire sprinkler system ($20,000), and a 200-amp electrical service upgrade.

The building has successfully completed its mandatory seismic retrofit (2019) and soft-story program requirements (2022), demonstrating compliance with San Francisco's earthquake safety regulations. The property underwent substantial interior improvements from 2017-2018, including reconfiguration of second and third-floor layouts and the addition of an accessory dwelling unit (ADU) on the ground floor featuring modern amenities.

Previous issues from 2003-2005 related to fire safety, hallways, and security were resolved, and no active violations are currently on record. Recent maintenance concerns have included a sewage backup (July 2024) and various sidewalk cleaning needs, though these do not directly impact building safety or habitability. A 2023 fire code violation related to the alarm system was promptly addressed and rescinded.